[BZ#789998] compiled and installed succssfully but failed to start with the error about namespace

Submitted by xin..@..com

Description

I compiled and installed meld 3.18.0 using the source code succssfully , but failed to start with the error below. esekilxv7345 [3:33] [SLED12-x86_64/meld/3.18.0] -> meld Traceback (most recent call last): File "/app/vbuild/SLED12-x86_64/meld/3.18.0/bin/meld", line 339, in check_requirements() File "/app/vbuild/SLED12-x86_64/meld/3.18.0/bin/meld", line 205, in check_requirements gi.require_version('GtkSource', '3.0') File "/app/vbuild/SLED12-x86_64/meld/3.18.0/lib/python3.4/site-packages/gi/init.py", line 100, in require_version raise ValueError('Namespace %s not available' % namespace)

I already installed gtk 3.20.0, gtksourceview 3.23.1, gobject-introspection 1.42.0, pycairo and some other dependencies , and there is lib/girepository-1.0/GtkSource-3.0.typelib under the installation directory.

Could you give me some instructions about this? Thanks !